Zooey would be near the top of my list, too! Others would be Alison Sudol, Leslie Mills, Andrea Corr, Michelle Branch, Joanna Pacitti, Anna Nalick, Kate Voegele, and she's young, but Cassadee Pope. At least I'm also young (early 30s,) so I don't feel super guilty.

I agree with many of yours - Chan Marshall has such a unique beauty - Regina is really cute - and Jenny Lewis is often underrated IMO.

In country, I like Carrie Underwood and Jessica Harp, and in R&B, I like Mya. The women of Au Revoir Simone are attractive indie stars. Can't get to all possible choices, but I've covered quite a few.